Ignitions and Electrical Charging Systems

Proform

LIGHTNINGBOLT ALTERNATOR W/ 10SI ADAPTER KIT

$361.09

SKU: P022 66437

In Stock
In Stock
Ships by Jun 7
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Over 80 Amps at Idle to Over 100 at Top End. 1-Wire 12 Volt Hook-Up. Internal Regulator. 98 mm Stator. 100 Amp Internal Fan. 2 3/4 in. V-Belt Pulley. Lightweight Only 7 lbs. Aluminum. Includes billet aluminum adapter kit for direct mounting to a standard 10SI mount. 40 Percent lighter than a full-size 10SI alternator. Mounts configured the same as 93 mm mini alternators. Lightning-Bolt unique aluminum housing. Ideal for Street or Strip. V-belt style pulley can be changed to serpentine.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandProform
Part NumberP022 66437

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy